0 1 |
2 2 |
1 3 |
1 4 |
2 5 |
1 6 |
1 7 |
1 8 |
1 9 |
1 10 |
1 11 |
2 12 |
1 13 |
1 14 |
1 15 |
1 16 |
2 17 |
1 18 |
1 19 |
2 20 |
1 21 |
1 22 |
1 23 |
1 24 |
1 25 |
2 26 |
1 27 |
1 28 |
0 1 |
2 2 |
1 3 |
1 4 |
2 5 |
1 6 |
1 7 |
1 8 |
1 9 |
1 10 |
1 11 |
1 12 |
1 13 |
1 14 |
1 15 |
1 16 |
2 17 |
1 18 |
1 19 |
2 20 |
1 21 |
1 22 |
1 23 |
1 24 |
1 25 |
2 26 |
1 27 |
1 28 |